cygwin converting gnuplot graph to postscript, converting to gif, and viewing in gif viewer. ImageMagick command line tools must be installed. To run linix/cygwin ImageMagick commands use the ! prefix to shell out. Good Luck :)
$ gnuplot
G N U P L O T
Version 4.2 patchlevel 0
last modified March 2007
System: CYGWIN_NT-5.1 1.5.24(0.156/4/2)
Copyright (C) 1986 - 1993, 1998, 2004, 2007
Thomas Williams, Colin Kelley and many others
Type `help` to access the on-line reference manual.
The gnuplot FAQ is available from
http://www.gnuplot.info/faq/
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Terminal type set to 'x11'
gnuplot> plot "gnuplotNormalOutput" with lines
gnuplot> set terminal postscript
Terminal type set to 'postscript'
Options are 'landscape noenhanced defaultplex \
leveldefault monochrome colortext \
dashed dashlength 1.0 linewidth 1.0 butt \
palfuncparam 2000,0.003 \
"Helvetica" 14 '
gnuplot> set output "chocksaway.ps"
gnuplot> replot
gnuplot> set output
gnuplot> set terminal x11
Terminal type set to 'x11'
Options are '0'
gnuplot> ! convert chocksaway.ps chocksaway.gif
!
gnuplot> ! display chocksaway.gif